Trends in International Mathematics and Science Study 2015

International, 2015

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Reference ID

int-iea-timss-2015-v1

Producer(s)

TIMSS & PIRLS International Study Center

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TIMSS and PIRLS

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Mar 20, 2021

Last modified

Mar 20, 2021

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STATEMENTS ABOUT ELECTRONIC DEVICE USAGE SURVEY (C) (M062325)

Data file: TIMSS-2015-pop2-studen-achievement-allcountries-metadata

Overview

Valid: 144

Invalid: 856

Type: Discrete

Decimal: 0

loc_start_pos: 55

loc_end_pos: 55

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	A	21	14.6%
2	B	22	15.3%
3	C*	76	52.8%
4	D	25	17.4%
Sysmiss		856

Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

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